diff --git a/.coderabbit.yaml b/.coderabbit.yaml
index cae3d876..61a0fe52 100644
--- a/.coderabbit.yaml
+++ b/.coderabbit.yaml
@@ -12,6 +12,9 @@ reviews:
   poem: false
   review_status: true
   collapse_walkthrough: false
+  sequence_diagrams: false
+  unit_tests:
+    enabled: false
   auto_review:
     enabled: true
     drafts: false
diff --git a/.codio b/.codio
index 4d189add..2f56d2a6 100644
--- a/.codio
+++ b/.codio
@@ -8,6 +8,7 @@
     // Preview button configuration
     "preview": {
         "Instructor": "https://{{domain}}/build/html/index.html",
+        "Preview": "https://{{domain}}/build/html/{{path}}/{{filename_no_ext}}.html",
         "Student": "https://{{domain}}/build/html/student.html",
         "Visit Ungit": "https://{{domain4000}}/#/repository?path=%2Fhome%2Fcodio%2Fworkspace"
         
diff --git a/source/img/guides/upload-file-button.png b/source/img/guides/upload-file-button.png
new file mode 100644
index 00000000..0e27bca5
Binary files /dev/null and b/source/img/guides/upload-file-button.png differ
diff --git a/source/img/guides/upload-file-example.png b/source/img/guides/upload-file-example.png
new file mode 100644
index 00000000..0d5ae833
Binary files /dev/null and b/source/img/guides/upload-file-example.png differ
diff --git a/source/instructors/admin/organization/llms.rst b/source/instructors/admin/organization/llms.rst
index 2f4d68cc..5475459d 100644
--- a/source/instructors/admin/organization/llms.rst
+++ b/source/instructors/admin/organization/llms.rst
@@ -97,6 +97,10 @@ The script:
 
    curl -X POST $LLM_URL  -H "Content-Type: application/json" -d '{"contents": [{"parts":[{"text": "your question here"}]}]}'
 
+
+.. Note:: SDKs may require or expect standard environment variables (e.g., `OPENAI_BASE_URL`, `OPENAI_API_KEY`) or explicit values, while `curl` can use the custom names you configure.
+
+
 Enabling LLM for Courses
 ------------------------
 
diff --git a/source/instructors/authoring/guides/custom_button.rst b/source/instructors/authoring/guides/custom_button.rst
index 59439fb3..213396de 100644
--- a/source/instructors/authoring/guides/custom_button.rst
+++ b/source/instructors/authoring/guides/custom_button.rst
@@ -78,6 +78,28 @@ Students can restore current files to the default setting from the :ref:`setting
 
     {Button text | reset}(optional commands to run)
 
+Creating an Upload File Button
+******************************
+
+The **Upload File** button can be used to request learners to upload files to a folder in the file tree. This is useful when you ask for multiple files in different folders:
+
+.. image:: /img/guides/upload-file-example.png
+    :alt: Screenshot of Guides with multiple buttons to upload files.
+
+.. Note:: You don't need to create the folder in advance. If the folder doesn't exist it will be created. 
+
+To create an Upload File button, use the button in the ribbon:
+
+.. image:: /img/guides/upload-file-button.png
+    :alt: Button to create an Upload File directive.
+
+Alternatively, this is the synxtax:
+
+.. code:: markdown
+
+    {Upload | upload-file}(path/optional)
+
+Once added to the guides, you can change the name of the button and the folder (and folder path), you can use subfolders.
 
 Writing a custom event handler
 ******************************
diff --git a/source/instructors/authoring/guides/markdown_content.rst b/source/instructors/authoring/guides/markdown_content.rst
index b61b5c48..27707926 100644
--- a/source/instructors/authoring/guides/markdown_content.rst
+++ b/source/instructors/authoring/guides/markdown_content.rst
@@ -140,7 +140,7 @@ To create a numbered list, you start the line with a `1.` The numbers are automa
 
 Code Blocks
 ***********
-If you want to show some code, styled with the courier font, in a box and with syntax highlighting applied you surround your code block with three backticks. For example, the following javascript snippet
+If you want to show some code, styled with the courier font, in a box and with syntax highlighting applied you surround your code block with three backticks. For example, the following javascript snippet:
 
 .. code:: javascript
 
@@ -152,7 +152,9 @@ If you want to show some code, styled with the courier font, in a box and with s
 
 is written with the first line as
 
-`` ```js``
+.. code:: markdown
+
+    ```js
 
 then your code, and the last line as three backticks
 
@@ -287,8 +289,8 @@ This can be achieved with collapsible content and the `<details> <summary>` elem
 Example
 -------
 
-  .. image:: /img/guides/collapsible.png
-     :alt: CollapsibleContent
+.. image:: /img/guides/collapsible.png
+    :alt: CollapsibleContent
 
 
 
@@ -308,11 +310,9 @@ The following is the code used to create the image above. Three code blocks are
     2. Variable `b` is assigned a value where the left-hand operator looks like a `string` however JavaScript tries to convert it into a number which is successful.
     3. In the case of variable `c`, the string can't be converted and the operation returns the value of `NaN` which means _not a number_. If this is then used in subsequent operations the value cascades and the result will also be `NaN`.
 
-.. code:: markdown
-
     <h6>Code Block</h6>
 
-    ```js `
+    ```js-hide-clipboard
     const name = {
             first: 'John',
             'last name': 'Doe',
@@ -321,8 +321,7 @@ The following is the code used to create the image above. Three code blocks are
                 month: 'January'
         }
     }
-
-.. code:: markdown
+    ```
 
     </details>